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<h1>gml_scanner.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//==========================================================================</span>
<a name="l00002"></a>00002 <span class="comment">//</span>
<a name="l00003"></a>00003 <span class="comment">//   gml_scanner.h </span>
<a name="l00004"></a>00004 <span class="comment">//</span>
<a name="l00005"></a>00005 <span class="comment">//==========================================================================</span>
<a name="l00006"></a>00006 <span class="comment">// $Id: gml_scanner.h,v 1.11 2000/03/06 15:16:52 raitner Exp $</span>
<a name="l00007"></a>00007 
<a name="l00008"></a>00008 <span class="preprocessor">#ifndef GTL_GML_SCANNER_H</span>
<a name="l00009"></a>00009 <span class="preprocessor"></span><span class="preprocessor">#define GTL_GML_SCANNER_H</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include &lt;GTL/GTL.h&gt;</span>
<a name="l00012"></a>00012 
<a name="l00013"></a>00013 <span class="preprocessor">#include &lt;cstdio&gt;</span>
<a name="l00014"></a>00014 
<a name="l00015"></a>00015 __GTL_BEGIN_NAMESPACE
<a name="l00016"></a>00016 
<a name="l00017"></a>00017 <span class="comment">/*</span>
<a name="l00018"></a>00018 <span class="comment"> * start-size of buffers for reading strings. If too small it will be enlarged</span>
<a name="l00019"></a>00019 <span class="comment"> * dynamically</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021 
<a name="l00022"></a>00022 <span class="preprocessor">#define INITIAL_SIZE 1024</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 GTL_EXTERN <span class="keyword">typedef</span> <span class="keyword">enum</span> {
<a name="l00025"></a>00025     GML_KEY, GML_INT, GML_DOUBLE, GML_STRING, GML_L_BRACKET, 
<a name="l00026"></a>00026     GML_R_BRACKET, GML_END, GML_LIST, GML_ERROR
<a name="l00027"></a>00027 } GML_value; 
<a name="l00028"></a>00028 
<a name="l00029"></a>00029 
<a name="l00033"></a>00033 GTL_EXTERN <span class="keyword">typedef</span> <span class="keyword">enum</span> {
<a name="l00034"></a>00034     GML_UNEXPECTED, GML_SYNTAX, GML_PREMATURE_EOF, GML_TOO_MANY_DIGITS,
<a name="l00035"></a>00035     GML_OPEN_BRACKET, GML_TOO_MANY_BRACKETS, GML_OK, GML_FILE_NOT_FOUND
<a name="l00036"></a>00036 } GML_error_value;
<a name="l00037"></a>00037 
<a name="l00038"></a>00038 
<a name="l00051"></a><a class="code" href="a00013.html">00051</a> <span class="keyword">struct </span>GTL_EXTERN <a class="code" href="a00013.html" title="Reason and position of an error in a GML file.">GML_error</a> {
<a name="l00076"></a><a class="code" href="a00013.html#66fe2c5a3d2d40e77ff486007dfe7f76">00076</a>     GML_error_value err_num;
<a name="l00077"></a>00077     
<a name="l00083"></a><a class="code" href="a00013.html#4e9d11b6501f91a982af87f45962b7b3">00083</a>     <span class="keywordtype">int</span> line;
<a name="l00084"></a>00084 
<a name="l00088"></a><a class="code" href="a00013.html#0708757bcd78a82077a0577982f2c433">00088</a>     <span class="keywordtype">int</span> column;
<a name="l00089"></a>00089 };
<a name="l00090"></a>00090 
<a name="l00091"></a>00091 
<a name="l00092"></a>00092 <span class="keyword">union </span>GTL_EXTERN GML_tok_val {
<a name="l00093"></a>00093     <span class="keywordtype">long</span> integer;
<a name="l00094"></a>00094     <span class="keywordtype">double</span> floating;
<a name="l00095"></a>00095     <span class="keywordtype">char</span>* str;
<a name="l00096"></a>00096     <span class="keyword">struct </span><a class="code" href="a00013.html" title="Reason and position of an error in a GML file.">GML_error</a> err;
<a name="l00097"></a>00097 };
<a name="l00098"></a>00098 
<a name="l00102"></a>00102 <span class="keyword">struct </span>GTL_EXTERN GML_token { 
<a name="l00103"></a>00103     GML_value kind;
<a name="l00104"></a>00104     <span class="keyword">union </span>GML_tok_val value;
<a name="l00105"></a>00105 };
<a name="l00106"></a>00106 
<a name="l00107"></a>00107 <span class="comment">/*</span>
<a name="l00108"></a>00108 <span class="comment"> * global variables</span>
<a name="l00109"></a>00109 <span class="comment"> */</span>
<a name="l00110"></a>00110 
<a name="l00111"></a>00111 GTL_EXTERN <span class="keyword">extern</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GML_line;
<a name="l00112"></a>00112 GTL_EXTERN <span class="keyword">extern</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GML_column;
<a name="l00113"></a>00113 
<a name="l00114"></a>00114 <span class="comment">/*</span>
<a name="l00115"></a>00115 <span class="comment"> * if you are interested in the position where an error occured it is a good</span>
<a name="l00116"></a>00116 <span class="comment"> * idea to set GML_line and GML_column back. </span>
<a name="l00117"></a>00117 <span class="comment"> * This is what GML_init does.</span>
<a name="l00118"></a>00118 <span class="comment"> */</span>
<a name="l00119"></a>00119  
<a name="l00120"></a>00120 GTL_EXTERN <span class="keywordtype">void</span> GML_init ();
<a name="l00121"></a>00121 
<a name="l00122"></a>00122 <span class="comment">/*</span>
<a name="l00123"></a>00123 <span class="comment"> * returns the next token in file. If an error occured it will be stored in </span>
<a name="l00124"></a>00124 <span class="comment"> * GML_token.</span>
<a name="l00125"></a>00125 <span class="comment"> */</span>
<a name="l00126"></a>00126 
<a name="l00127"></a>00127 GTL_EXTERN <span class="keyword">struct </span>GML_token GML_scanner (FILE*);
<a name="l00128"></a>00128 
<a name="l00129"></a>00129 GTL_EXTERN <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* GML_table[];
<a name="l00130"></a>00130 
<a name="l00131"></a>00131 __GTL_END_NAMESPACE
<a name="l00132"></a>00132 
<a name="l00133"></a>00133 <span class="preprocessor">#endif // GTL_GML_SCANNER_H</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span>
<a name="l00135"></a>00135 <span class="comment">//--------------------------------------------------------------------------</span>
<a name="l00136"></a>00136 <span class="comment">//   end of file</span>
<a name="l00137"></a>00137 <span class="comment">//--------------------------------------------------------------------------</span>
</pre></div>    <p class="links">
      <a href="http://www.uni-passau.de/">University of Passau</a>
      &nbsp;-&nbsp;
      <a href="http://www.fmi.uni-passau.de/">FMI</a>
      &nbsp;-&nbsp;
      <a href="http://www.fmi.uni-passau.de/fmi/lehrstuehle/brandenburg/">Theoretical
	Computer Science</a>
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      Design &copy; 2002, 2003 <a href="mailto:raitner@fmi.uni-passau.de">Marcus Raitner</a>,  University of Passau 
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